Configuring The Portserver Over The Ethernet - Digi PortServer/8 User Manual

Simple 3-Wire Cable
RJ-11 - 4 Pin
Signal
GND
TxD
RxD
SG
( = Cable Shield)
This same configuration can be constructed using 6 pin RJ-11 plugs, or either 8 or
10 pin RJ-45 plugs. See "RJ Connectors" on page 91 for the relationship of the
various sizes of RJ connectors to the 10 pin RJ-45 jack.

Configuring the PortServer over the Ethernet

If the IP address has not been set, the PortServer will attempt to use RARP (Reverse Address
Resolution Protocol) to determine its IP address. If this succeeds, the rest of the PortServer
configuration may be completed by connecting to the PortServer using telnet, without connecting
a serial terminal.
For this to work, a RARP server must be set up somewhere on the network. Consult your
operating system and network software documentation for information on how to do this.
(On many UNIX systems, such information can be found in the manual entry for rarpd).
DB-25 Male
Pin Pin
1 1
2 2
3
3
4 7
Signal
GND
TxD
RxD
SG
PortServer Terminal Server Ÿ Page 5